S88.121S is the authoritative medical code for Partial traumatic amputation at level between knee and ankle, right lower leg, sequela. This classification is used in medical billing and clinical recording to specify the clinical criteria for partial traumatic amputation at level between knee and ankle, right lower leg, sequela (ICD-10-CM S88.121S), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Partial traumatic amputation at level between knee and ankle, right lower leg, sequela is a billable ICD-10-CM diagnosis code S88.121S. Excludes1 (not coded here): traumatic amputation of ankle and foot S98.-. Excludes2 (not included here): burns and corrosions T20-T32; frostbite T33-T34; injuries of ankle and foot, except fracture of ankle and malleolus S90-S99; insect bite or sting, venomous T63.4. 7th character: The appropriate 7th character is to be added to each code from category S88.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S88.121S in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- traumatic amputation of ankle and foot S98.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions T20-T32
- frostbite T33-T34
- injuries of ankle and foot, except fracture of ankle and malleolus S90-S99
- insect bite or sting, venomous T63.4
Frequently Asked Questions (FAQ) & Clinical Guidance
Does S88.121S require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S88.
What can't be coded together with S88.121S?
Per official ICD-10-CM Excludes1 instructions, S88.121S must not be reported together with: traumatic amputation of ankle and foot (S98.-).
Can S88.121S be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S88.121S and the following are not considered part of each other and may both be reported when both conditions are present: burns and corrosions (T20-T32); frostbite (T33-T34); injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99); insect bite or sting, venomous (T63.4).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S88.121S in its code family, with their registry titles.
- S88 — Traumatic amputation of lower leg
- S88.0 — Traumatic amputation at knee level
- S88.01 — Complete traumatic amputation at knee level
- S88.011 — Complete traumatic amputation at knee level, right lower leg
- S88.011A — Complete traumatic amputation at knee level, right lower leg, initial encounter
- S88.011D — Complete traumatic amputation at knee level, right lower leg, subsequent encounter
- S88.011S — Complete traumatic amputation at knee level, right lower leg, sequela
- S88.012 — Complete traumatic amputation at knee level, left lower leg
- S88.012A — Complete traumatic amputation at knee level, left lower leg, initial encounter
- S88.012D — Complete traumatic amputation at knee level, left lower leg, subsequent encounter
View all 40 codes in the S88 family